Method of finishing and standardizing tubes of pulp, paper, &amp;c.



No. 790,070, PATENTED MAY 16, 1905. v

' E. MOXHAM.

METHODOPFINISHING AND STANDARDIZING TUBES 0F PULP,'P-APER, s

I APPLICATION FILED mn.11,19o5.

v z sums-sum 1.

No. 790,070. PATENTED MAY 16, 1905.

E. MOXHAM. 'METHOD OF FINISHING AND STANDARDIZING TUBES 0F PULP, PAPER,&o.

APPLICATION FILED MAR. 17,1905.

2 SHEETS-SHEET 2.

' cases considerable trouble.

UNITED STATES Patented May 16, 1905.

PATENT OFFICE.

METHOD OF FlNlSHlNG AND STANDARDIZING TUBES OF PULP, PAPER, &c.

SPECIFICATION forming part of Letters Patent No. 790,070, dated. May 16,1905.

' Application filed March 17, 1905. Serial No. 250,548.

To all whom) it may concern:

Be it known that I, EGBERT MOXHAM, acitizen of the United States,residing at Wilming ton, county of Newcastle, and State of Delaware,have invented a new and useful Improvement in Methods of Finishing andStandardizing Tubes of Pulp, Paper, or Similar Material and RemovingtheWater Therefrom, of which the following is afull, clear, and exactdescription, reference being had to the accompanying drawings, whichform a part of this specification. I

I have discovered a new process or method by which a cylinder or tube ofpulp, paper, or similar material may in a wet condition be brought to astandard size and contour and the moisture extracted therefrom.Heretofore in the manufacture of tubes or cylinders from pulp, paper, orsimilar material from the pulp in a wet condition the resultant tubeswere not always of standard size or standard consistency. This producedin many By my improved process tubes or cylinders are finished to astandard size and standard consistency, which is of great advantage inthis art. I

Speaking generally, my process consists of subjecting the tube in amoist condition to the action of centrifugal force in a perforatedbasket, the inner wall of which conforms to the desired size and contourof the tube to be formed. If the cylinder or tube is to be provided withagroove or grooves, or is, in other words,

to be what is known in the art as corrugated, I provide a correspondingprojection or projections on the inner wall of the perforated basket.trifugal force in the manner above-set forth, it will be expanded bythis force within the limits ofthe interior wall of the basket to whichit will hug closely and conform itself, the moisture in the cylinder ortube being forced by the centrifugal action through the perforations inthe basket-wall. I am thus enabled to produce a finished tube ofstandard size and con-- sistency and one which may have more or lessirregularities in its contour by a simple method.

By carrying out the process hereinbefore When the tube is subjected tocendescribed all tubes produced in the same basket are of standard sizeand standard consistency, thus enabling me to produce a standard anduniform product.

I will now describe a machine in which my invention may be carried out.

In the drawings, Figure 1 is aside elevation of the complete machine.Fig. 2 is a rear elevation of the same. Fig. 3 is a vertical transversesection on the line A B. Fig. 4 is a plan view. Fig. 5 is a frontelevation of clamp for holding sections together.

A is a casing made up of a plurality of sections, three being shown inthe drawings. Each of these sections is suitably hinged by means of thehinge-bolts a to the base B. On the inner surface of these sections arevertical grooves b, expanding toward the bottom or being larger at thebottom than at the top. On the inner surface of the casing, restingagainst the ridges between the grooves, is secured a perforated-basketformed of a perforated metal sheet and'gauze lining e. If the tube orcylinder to be treated is to be grooved or corrugated, thefiuting-pieces e are fastened to this metal sheet. The casing when inits assembled position is secured by the clamps (J, which slideover thetop of the easingAin the dovetails. This practically gives a solidcasing. The baseB is set on a shaft D, suitably mounted in the bearings(J and rotated by a belt which passes over the idlers b and b and thepulley. E. F is a circular rest supported by the brackets d d, thepurpose of which is to form a stop or rest for the casing when theclamps have been removed and the same has been opened for the removal ofthe tube. The pan-H is provided to collect and drain off the moistureforced out of the material.

In order to insert the cylinder to be treated,

the clamps are slipped off, sections opened on their hinges, and thecylinder or tube inserted and rested on the base B. The sections arethen closed, the clamps are forced down in the dovetails, and the shaftrevolved, the same motion thus being imparted to the basket, andcentrifugal force is thus put upon the cylinder or tube, causing it toexpand and conform to the inner contour of the basket,

the metal sheet being of the desired size, shape, and configuration ofthe finished artic e.

Having now fully described my invention, What I desire to protect byLetters Patent is 1. The hereinbefore-described method of finishing atube of pulp, paper or similar material and removing the watertherefrom, which consists in subjecting the tube, in a moist condition,to the action of centrifugal force in a perforated basket, the innerwall of which conforms to the desired size of the tube to be formed.

2. The hereinbefore-described method of finishing a tube of pulp, paperor similar material, and removing the water therefrom, which consists ofsubjecting the tube, in a moist condition, to the action of centrifugalforce in a perforated basket, the inner wall of 3. Thehereinbefore-described method of finishingagrooved or fluted tube ofpulp, paper, or similar material, and removing the water therefrom,which consists in subjecting the tube to the action of centrifugal forcein a perforated basket, the inner wall of which is of the desired sizeof the tube to be produced and having a projection or projectionstherefrom.

In testimony of which invention 1 have hereunto set my hand, atPhiladelphia, on this 14th day of March, 1905.

EGBERT MOXH AM.

\Vitnesses:

M. M. HAMILTON, THORNLEY B. Wool).

